铬

In the traditional process,β-methylnaphthalene is oxidized with solution of chromic acid to give β-methylnaphthoquinone. However, a great deal of waste water with chromium will be produced in the process, which is very serious to environment. At the same time, the raw material consumption is great, which lead to the high production cost. Furthermore, by-product 6-methyl-1, 4-naphthoquinone will be produced, which is difficult to be separated completely and be utilized solely.

传统的生产工艺是用铬化物氧化β-甲基萘制备β-甲基萘醌，此工艺在生产过程中会产生大量的含铬废水，处理繁杂困难，对环境污染十分严重，并且原料消耗大，成本高，反应过程中的副产物6-甲基-1，4-萘醌未能加以彻底分离和利用。

The feasibility of chromium residue as cement mineralizer was proved theoretically and practically.

研究对比了掺加铬渣前后水泥制品、"三废"排放和装置消耗的各项性能指标，得出了铬渣作水泥矿化剂的最佳掺加量。

Results Multifocal pheochromocytoma comprised of 14.1% of the total pheochromocytoma treated in the same period.

结果 多发性嗜铬细胞瘤占同期嗜铬细胞瘤的14.1%（17/121）。

A new spectrophotometric method for the determination of chromium has been developed. In HCl medium, the chromium oxidizes hydroxylammonium chloride to form nitrite, which produces a pink azo dye when reacting with p-aminobenzene sulfonic acid and α-naphthylamine.

基于铬在稀盐酸介质中氧化盐酸羟胺产生亚硝酸根，而亚硝酸根与对氨基苯磺酸重氮化后可与α-萘胺偶联产生粉红色偶氮染料，提出了分光光度法测定铬的新方法。

By contrast, dexamethasone, a synthetic glucocorticoid, induces a chromaffin cell phenotype characterized by increased cell flattening, loss of neuritic processes, increased chromogranin A and tyrosine hydroxylase proteins, and decreased amounts of secretogranin II and neurofilaments.

作为对照，地塞米松诱导嗜铬细胞表型，具有特征的增加细胞变扁、丧失神经突起，增加嗜铬粒蛋白A和酪氨酸羟化酶蛋白，减少分泌粒蛋白II和神经丝的数量。

Chromate treatment: Unless otherwise specified in the contract or order (see 6.2), the chromate treatment required for conversion to Type Ⅱ shall be a treatment in or with an aqueous solution of salts, acids, or both, to produce a continuous smooth, distinct protective film, distinctly colored iridescent bronze to brown including olive drab, yellow, and forest green.

铬酸盐处理：除非另有规定的合同或命令，铬治疗的需要转化为O型应为治疗或水溶液的盐，酸，或两者，生产持续平稳，独特的保护膜，彩色闪光明显的铜牌变成褐色包括橄榄树黄褐色，黄色和绿色的森林。

However, in nanolized iron system, the influences of chloride, sulfate, nitrate and perchloride ions on chromium removal rate were very relatively insignificant.

然而在奈米铁系统中，氯离子、硫酸根、硝酸根及过氯酸根对於六价铬的去除效果影响较不明显，但磷酸根却会使六价铬的去除效果明显降低。

The effective separation of potassium chromate and potassium carbonate is of great importance for the regeneration of the Sub-Molten Salt media in the new cleaner production technology of chromate.

铬酸钾－碳酸钾的高效分离是铬盐清洁工艺亚熔盐介质再生的重要环节。

In the experiment, the study on result of measurement of COD by potassium dichromate method has been conducted in the aspect of impact and application scope, proposing the method of measuring low COD in waste water of high chlorine and putting forward new comment on its influence factor.

本试验采用重铬酸钾标准法对COD测定结果的影响程度与适用范围进行了探索，提出了用低浓度重铬酸钾氧化法测定含高氯根废水中低COD的方法，对其影响因素提出新的看法。

A new cleaner technology for making chromium trioxide and potassium nitrate simultaneously by using nitric acid to decompose potassium dichromate has been brought forward.

提出了硝酸分解重铬酸钾法联产铬酸酐与硝酸钾的清洁工艺，并优选出过程中主要环节的合理操作条件。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。